The invention relates to a self-sealing pneumatic vehicle tire having a belt package (2), a tread (1) arranged radially above the belt package (2) and an airtight inner layer (4) arranged radially on the inside, wherein the self-sealing of the pneumatic vehicle tire is obtained via a sealant layer (5) subsequently applied radially on the inside after the vulcanization of the pneumatic vehicle tire, wherein the sealant layer (5) has essentially the width of the belt package (2) and is arranged essentially in the projection thereof and has a cross section which is formed in a cross-sectional plane including the tire axis and has a surface (5a) running essentially parallel to the belt package in axial direction and a surface (5b) running essentially in radial direction.

It is a feature of the invention that at least the surface of the sealant layer (5a) running essentially parallel to the belt package in axial direction has a circumferential coating (6) that contains at least elastomer particles.

In the method of the invention, the sealant layer is coated at least with elastomer particles.

An adhesive sealant formulation for tires includes: from 20% to 35% by weight of the total formulation of block copolymers, from 55% to 75% by weight of the total formulation of resins, from 0.2% up to 2.0% by weight of the total formulation of a mixture of stabilizers and antioxidants, where the quantity of stabilizers within the mixture varies from 0 up to a maximum 1.50% by weight of the total formulation and the amount of antioxidants varies from 0 up to a maximum of 1.50% by weight of the total formulation, such as in particular: primary phenolic pentaerythritol-tetrakis(3(3,5-di-tert-butyl-4-hydroxyphenyl)propionate); from a minimum of 5% to a maximum of 35% by weight of the total formulation of paraffinic or naphthenic plasticizers; from a minimum of 2% up to a maximum of 5% by weight of the total formulation of mineral fillers.

A method for reducing the stickiness on the surface exposed to the air of a sealant layer applied on an inner cavity of a tyre. The method establishes that the surface exposed to the air of the sealant layer is subject to a UV radiation.

The present disclosure provides tire pressurization/sealant systems that can include a coned plunger valve. The present disclosure also provides tire pressurization/sealant systems that can include, for example, a first fluid source, a plunger valve assembly, a first conduit extending from the first fluid source to the plunger valve assembly, and a tire pressurizing hose extending from the plunger valve assembly. The present disclosure also provides methods for providing sealant to a tire via a tire pressurizing hose and cleaning out the tire pressurizing hose. The methods can include providing tire sealant to a tire via a tire pressuring hose through a plunger valve assembly and reconfiguring the plunger valve assembly to provide an aqueous solution through the hose to clean out the valve assembly and the hose.

This invention discloses a technique for replenishing the level of sealant in self-sealing tires at the time that a puncture in the tire is being repaired or when the tire is being recapped. This technique provides the tire with its original level of self-sealing capabilities and will enhance the possibility of the tire remaining in service until it can be conveniently repaired. This method involves (1) injecting a liquid sealant formulation into the sealant layer of a self-sealing tire through at least one puncture hole therein, and (2) sealing the hole or holes in the supporting carcass and the innerliner of the tire. The sealant utilized is typically liquid polyisobutylene having a weight average molecular weight of 25,000 to 200,000. The sealant formulation used can optionally also contain a colorant or a pigment.

The invention relates to a self-sealing pneumatic vehicle tire having a belt package (2), a tread (1) arranged radially above the belt package (2) and an airtight inner layer (4) arranged radially on the inside, wherein the self-sealing of the pneumatic vehicle tire is obtained via a sealant layer (5) subsequently applied radially on the inside after the vulcanization of the pneumatic vehicle tire, wherein the sealant layer (5) has essentially the width of the belt package (2) and is arranged essentially in the projection thereof and has a cross section which is formed in a cross-sectional plane including the tire axis and has a surface (5a) running essentially parallel to the belt package in axial direction and a surface (5b) running essentially in radial direction.

It is a feature of the invention that at least the surface of the sealant layer (5a) running essentially parallel to the belt package in axial direction has a circumferential coating (6) that contains at least one alkali metal salt of at least one fatty acid and/or at least one alkaline earth metal salt of at least one fatty acid.

Provided is a flat tire repair liquid container including: a container main body including a container body in which a flat tire repair liquid is stored, and an opening; and a cap including a flow path configured to guide the flat tire repair liquid out of the container. The flow path includes a cylinder portion of which an end of a first side is open toward internal space of the container body and in which a closing plug is slidably inserted, and a dispensing portion branching from the cylinder portion and open to outside the container. The closing plug is configured to close the flow path by being positioned at the end of the first side of the cylinder portion, and to open the flow path by being subjected to pressure inside the container during flat tire repair work and moving to a second side.

Provided is a pneumatic tire having excellent sealing performance. The present invention relates to a pneumatic tire including a sealant layer located radially inside an innerliner, the sealant layer being formed of a generally string-shaped sealant provided continuously and spirally along the inner periphery of the tire.

Provided is a pneumatic tire in which a sealant layer entirely exhibits sufficient sealing performance. The present invention relates to a pneumatic tire including a sealant layer located radially inside an innerliner, the sealant layer being formed by continuously and spirally applying a generally string-shaped sealant to the inner periphery of a tire in the tire width direction from one side to the other, the attachment start portion of the sealant being located tire-widthwise inward from the tire-widthwise end of the sealant layer.

Provided is a self-sealing tire that is excellent in the effect of reducing adhesion of foreign materials to the sealant layer, sealing performance, and road noise-reducing properties while maintaining the balance between them. The present invention relates to a pneumatic tire, including: a sealant layer located radially inside an innerliner; and a sound-absorbing layer located radially inside the sealant layer, the sound-absorbing layer being formed by applying a porous sound-absorbing material to the inner periphery of the sealant layer.